Type Definition std::os::wasi::io::RawFd

pub type RawFd = c_int;

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

This is supported on WASI only.

Raw file descriptors.

This has type c_int to ease compatibility with code that also compiles on Unix configurations, however unlike Unix and POSIX, in WASI negative file descriptors are valid. Only -1 is reserved for indicating errors. Code intending to be portable across Unix platforms and WASI should avoid assuming that negative file descriptors are invalid.

Trait Implementations

impl AsRawFd for RawFd

fn as_raw_fd(&self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

Extracts the raw file descriptor.

impl FromRawFd for RawFd

unsafe fn from_raw_fd(fd: RawFd) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

Constructs a new instance of Self from the given raw file descriptor.

impl IntoRawFd for RawFd

fn into_raw_fd(self) -> RawFd

🔬 This is a nightly-only experimental API. (wasi_ext #71213)

Consumes this object, returning the raw underlying file descriptor.